Provide a Conterexample in a Finite Domain to Each Given

question 1

Essay

provide a conterexample in a finite domain to each given invalid argument.
-1. (∃x)(Gx • Hx)
2. (∃x)(Gx • Jx)
3. (∀x)(Jx ⊃ Kx) / (∃x)(Hx • Jx)

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